PA6620036 · Pennsylvania

MASONS MOBILE CITY

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 28
EPA health-based flag: 10
Health-based records unresolved in this snapshot: 1
Monitoring and reporting records: 14

Counties listed by EPA · Warren County, Pennsylvania

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 18 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 91 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Unaddressed by formal action

Treatment Technique, Corrective/Expedited Actions (RTCR)Violation 2607872 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2026 · first reported March 11, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26078726001	January 23, 2026	Informal	State Formal Notice of Violation issued
26078727001	January 23, 2026	Informal	State Public Notification requested

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2623049 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 13, 2026 · period end August 24, 2026 · first reported August 26, 2026 · EPA return-to-compliance field August 24, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
26230497023 August 24, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26230497023	August 24, 2026	Resolving	State Compliance achieved

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 2623048 · Groundwater Rule · Ground Water Rule

Noncompliance period start July 1, 2026 · period end July 31, 2026 · first reported August 26, 2026 · EPA return-to-compliance field July 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26230486016	August 24, 2026	Informal	State Public Notification requested
26230487016	August 24, 2026	Formal	State Administrative/Compliance Order without penalty issued
26230488016	August 24, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 2620737 · Groundwater Rule · Ground Water Rule

Noncompliance period start June 1, 2026 · period end June 30, 2026 · first reported August 26, 2026 · EPA return-to-compliance field June 30, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26207376015	July 27, 2026	Informal	State Public Notification requested
26207377015	July 27, 2026	Formal	State Administrative/Compliance Order without penalty issued
26207378015	July 27, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 2617901 · Groundwater Rule · Ground Water Rule

Noncompliance period start May 1, 2026 · period end May 31, 2026 · first reported August 26, 2026 · EPA return-to-compliance field May 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26114397008	July 6, 2026	Informal	State Public Notification received
26114398008	July 6, 2026	Informal	State Public Notification requested
26179018014	July 6, 2026	Informal	State Bilateral Compliance Agreement signed

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 2616727 · Groundwater Rule · Ground Water Rule

Noncompliance period start April 1, 2026 · period end April 30, 2026 · first reported August 26, 2026 · EPA return-to-compliance field April 30, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26114397008	July 6, 2026	Informal	State Public Notification received
26114398008	July 6, 2026	Informal	State Public Notification requested
26147226011	July 6, 2026	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 2614722 · Groundwater Rule · Ground Water Rule

Noncompliance period start March 1, 2026 · period end March 31, 2026 · first reported May 19, 2026 · EPA return-to-compliance field March 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26114397008	July 6, 2026	Informal	State Public Notification received
26114398008	July 6, 2026	Informal	State Public Notification requested
26147226011	July 6, 2026	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Resolved

Treatment Technique, Corrective/Expedited Actions (RTCR)Violation 2611436 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start February 17, 2026 · period end February 23, 2026 · first reported March 11, 2026 · EPA return-to-compliance field February 23, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26114366006	February 23, 2026	Informal	State Violation/Reminder Notice
26114368006	February 23, 2026	Resolving	State Compliance achieved

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 2612573 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 1, 2026 · period end February 28, 2026 · first reported May 19, 2026 · EPA return-to-compliance field February 28, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26114396008	March 30, 2026	Formal	State Administrative/Compliance Order without penalty issued
26125736009	March 30, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2614721 · 2,3,7,8-TCDD · Synthetic Organic Chemicals

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 19, 2026 · EPA return-to-compliance field March 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26147216010	May 12, 2026	Informal	State Formal Notice of Violation issued
26078768004	May 18, 2026	Resolving	State Compliance achieved

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 2611439 · Groundwater Rule · Ground Water Rule

Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported May 19, 2026 · EPA return-to-compliance field January 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26114396008	March 30, 2026	Formal	State Administrative/Compliance Order without penalty issued
26114397008	July 6, 2026	Informal	State Public Notification received
26114398008	July 6, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2607877 · Total Polychlorinated Biphenyls (PCB) · Synthetic Organic Chemicals

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 11, 2026 · EPA return-to-compliance field December 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26078756003	February 11, 2026	Informal	State Formal Notice of Violation issued
26078757003	February 11, 2026	Informal	State Public Notification requested
26078758003	March 30, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2607876 · 2,3,7,8-TCDD · Synthetic Organic Chemicals

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 11, 2026 · EPA return-to-compliance field December 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26078756003	February 11, 2026	Informal	State Formal Notice of Violation issued
26078757003	February 11, 2026	Informal	State Public Notification requested
26078768004	May 18, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2607875 · Total Polychlorinated Biphenyls (PCB) · Synthetic Organic Chemicals

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 11, 2026 · EPA return-to-compliance field December 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26078756003	February 11, 2026	Informal	State Formal Notice of Violation issued
26078757003	February 11, 2026	Informal	State Public Notification requested
26078758003	March 30, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2531837 · Total Polychlorinated Biphenyls (PCB) · Synthetic Organic Chemicals

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported March 9, 2026 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26318321004	November 12, 2025	Informal	State Public Notification requested
26318324	November 12, 2025	Informal	State Formal Notice of Violation issued
26318352007	March 30, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2531836 · 2,3,7,8-TCDD · Synthetic Organic Chemicals

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported March 9, 2026 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26318321004	November 12, 2025	Informal	State Public Notification requested
26318324	November 12, 2025	Informal	State Formal Notice of Violation issued
26318362008	May 18, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2531835 · Total Polychlorinated Biphenyls (PCB) · Synthetic Organic Chemicals

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported March 9, 2026 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26318321004	November 12, 2025	Informal	State Public Notification requested
26318324	November 12, 2025	Informal	State Formal Notice of Violation issued
26318352007	March 30, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2531834 · 2,3,7,8-TCDD · Synthetic Organic Chemicals

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported March 9, 2026 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26318321004	November 12, 2025	Informal	State Public Notification requested
26318324	November 12, 2025	Informal	State Formal Notice of Violation issued
26318342006	February 2, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 2531833 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported March 9, 2026 · EPA return-to-compliance field September 30, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26318321004	November 12, 2025	Informal	State Public Notification requested
26318324	November 12, 2025	Informal	State Formal Notice of Violation issued

Monitoring or reporting · Archived

Monitoring and Reporting (DBP)Violation 2531832 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported March 9, 2026 · EPA return-to-compliance field September 30, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
26318321004	November 12, 2025	Informal	State Public Notification requested
26318324	November 12, 2025	Informal	State Formal Notice of Violation issued

Other or unclassified · Resolved

Public Notification Violation for NPDWR ViolationViolation 2316216 · Public Notice · Public Notice Rule and Revised PN Rule

Noncompliance period start January 13, 2023 · period end March 23, 2023 · first reported March 16, 2023 · EPA return-to-compliance field March 23, 2023

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231621578008	March 6, 2023	Informal	State Formal Notice of Violation issued
231621579008	March 23, 2023	Informal	State Violation/Reminder Notice
231621580008	March 23, 2023	Informal	State Public Notification requested
231621581008	March 23, 2023	Informal	State Public Notification received
231621582008	March 23, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 2316215 · Groundwater Rule · Ground Water Rule

Noncompliance period start January 1, 2023 · period end January 31, 2023 · first reported March 16, 2023 · EPA return-to-compliance field January 31, 2023

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231621578008	March 6, 2023	Informal	State Formal Notice of Violation issued
231621579008	March 23, 2023	Informal	State Violation/Reminder Notice
231621580008	March 23, 2023	Informal	State Public Notification requested
231621581008	March 23, 2023	Informal	State Public Notification received
231621582008	March 23, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2311408 · Groundwater Rule · Ground Water Rule
Noncompliance period start December 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
231140579002 January 23, 2023 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2311405 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start December 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
231140579002 January 23, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231140579002	January 23, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
231140579002	January 23, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Inadequate ReportingViolation 2301831 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 1, 2022 · period end June 14, 2023 · first reported June 15, 2023 · EPA return-to-compliance field June 14, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
230183178001	June 14, 2023	Informal	State Violation/Reminder Notice
230183180001	June 14, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2263032 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported November 21, 2022 · EPA return-to-compliance field September 30, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
236303272003	November 14, 2022	Informal	State Violation/Reminder Notice
233187274001	November 15, 2022	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 2234474 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2022 · period end November 15, 2022 · first reported December 14, 2022 · EPA return-to-compliance field November 15, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
233187274001	November 15, 2022	Resolving	State Compliance achieved
233447472002	November 15, 2022	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2231872 · Arsenic · Arsenic Rule

Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported August 22, 2022 · EPA return-to-compliance field June 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
223187272001	August 10, 2022	Informal	State Violation/Reminder Notice
223187272014	August 10, 2022	Informal	State Violation/Reminder Notice
233187274001	November 15, 2022	Resolving	State Compliance achieved

EPA data and scope

How to read the records

The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.

We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.

EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility